Yankees retire Jorge Posada's No. 20 in Monument Park

Jorge Posada debuts on Hall of Fame ballot

Posada immortalized with retirement of No. 20

The Greedy Pinstripes: Remembering Yankees of the Past: Jorge Posada

Former New York Yankees catcher Jorge Posada (20) during the Seventy First Old Timers Day Game played prior to game between the New York Yankees and Texas Rangers at Yankee Stadium in

Yankees to retire Paul O'Neill's No. 21 jersey this summer - Newsday

Yankees legends: Andy Pettitte gushes about Jorge Posada's career

What Other Numbers Might the Yankees Be Retiring in the Near Future?

List of Yankee Retired Numbers in Monument Park - Newsday

Derek Jeter's No. 2, Last of Yankees' Single Digits, to Be Retired - The New York Times